Wednesday, December 25, 2013

Before you buy, is a solar installation right for you?

Before you buy, is a solar installation right for you
A solar installation is a big investment for any home or business. Before you buy, you need to be certain that a solar installation is right for you and will fit your power needs. Ask these questions before you invest in solar energy.

Is your site appropriate?

You’ll need to assess your site to make sure it’s ideal for solar installation. A trained solar installer can help you determine that your site has the qualities needed for generating solar power. Not only will the site and landscape need assessed, your roof will also need evaluated. In homes and businesses with aging roofs, it may be a good idea to invest in a new roof before having the solar installation started.

You should also consider the future of your site. If expansion is in the future, you’ll need to make sure your future plans won’t disrupt the functioning of the solar installation. If you anticipate using solar energy to power the expansion, you should also consider how to integrate the solar installation with the new addition now.

What size system do you need?

Oversizing or undersizing your new solar installation won’t help you use your funds efficiently. You’ll need to evaluate your home’s current electricity needs as well as account for changing needs in the future. If you’re not ready to switch completely to solar energy, size the system to accurately supplement your home or business’s electric utility usage. A skilled solar installer can be a huge help, and can work with you to determine the proper size for your solar installation.

Can you afford the cost?

Solar installations are expensive. Luckily, there are many programs which can help you cut that cost. Federal tax credits are available for homeowners who install solar systems at home, which can be good for up to 30 percent of the installation costs. Many states and utility companies offer programs which give rebates or credits which can further lower the cost to you. You may be eligible to receive a loan to help you pay upfront costs. Solar leases are another option that may be chosen which can eliminate upfront costs.

Monday, December 16, 2013

All about solar gardens and virtual net metering

All about solar gardens and virtual net metering

Communities around the country are beginning to take advantage of solar photovoltaic power. Some communities utilize a solar garden, where solar photovoltaic panels are installed in a location other than the homes of those who use the power. Subscribers can sign up to co-own or lease a portion of the solar photovoltaic setup to receive its benefits. Solar gardens and net metering make it possible for homeowners to use solar power even if their home sites are less than ideal for installation.

In a solar photovoltaic system owned by the homeowner, net metering allows the homeowner to sell unused energy back to the utility gird. In a shared system, virtual net metering allows these energy credits to be shared between all the parties subscribed to the system. Unfortunately, solar garden subscribers aren't always eligible to receive these credits because the solar photovoltaic equipment isn't directly attached to their homes or buildings.

The growth of solar garden installation is creating new challenges for solar experts as well as legislators. These issues weren't a problem when systems were owned by single owners. With more communally-owned solar photovoltaic systems being developed each day, changes to the virtual net metering system are needed to allow members to receive the same benefits as single owners.

Luckily, some legislators are starting to realize this flaw of the virtual net metering system. New legislation is being passed in many states to allow solar garden subscribers to also receive the benefits of net metering.

To learn more about solar gardens and virtual net metering, call the solar photovoltaic experts at Smith Sustainable Design.

Monday, December 9, 2013

Solar panels for homes and your homeowner’s association

Solar panels for homes and your homeowner’s association

If you live in a neighborhood with a homeowners association, you know there are regulations which dictate what you can and cannot do on your property. Some homeowners associations are making it harder for homeowners to install solar panels for homes. While this may seem unreasonable to homeowners, a few of the reasons why homeowners associations are against solar panels for homes are listed below.


Solar panels for homes aren't aesthetically pleasing

Today’s solar panels for homes don’t look anything like the big, bulky units that first came out decades ago. Unfortunately, many homeowners associations are living in the past, and still view solar panels as ugly. Today’s solar panels for homes have come a long way and manufacturers have made great improvements to the look of home solar panels, so this should really be a non-issue for a homeowners association.

Some homeowners associations don’t like change

Some homeowners associations are reluctant to chance their policies. This may be because the board members don’t want the change. Whether it’s solar panels for homes or another change being pushed through, some people just aren't agreeable to change.

Homeowners associations are uneducated about solar panels for homes

Since this technology has really been gaining popularity in the last decade, not everyone is educated about the advantages and benefits solar panels for homes offer. To some who aren't aware of how the systems work, it may just seem like homeowners are wanting to switch utility providers, rather than give themselves the power to generate their own electricity. There are also many misconceptions about electric solar energy that can be a turn-off to those making the rules, such as the expense and the capabilities of solar technology. If board members don’t have all the facts about solar panels for homes, they are less likely to change the rules for homeowners wanting to install them.

Monday, December 2, 2013

Why choose electric solar energy

Why choose electric solar energy
Many home and business owners today are choosing electric solar energy to provide the power they need each day. This clean and abundant energy source is widely available wherever you are, but previously, the upfront costs have turned off many. Luckily, costs are declining and attitudes are changing, making electric solar energy more popular than ever.

Electric solar energy systems are ideal for most homes and businesses. These systems empower home and business owners, giving them the ability to generate much, if not all, the electricity needed to power everyday needs and operations. Generating energy rather than paying a utility company for it also offers significant savings, and can help system owners recoup the cost of equipment and installation. Plus, electric solar energy system owners won’t be vulnerable to rate increases from utility providers.

Choosing to install an electric solar energy system can also increase home values. For every dollar in energy savings the system generates each year, the United States Department of Energy reports that the system can add $10 to $20 to the value of your home. Plus, the protection created by roof mounted solar panels can protect your roofing materials, making your roof last longer.

Installing an electric solar energy system at your home or business doesn’t only benefit you, it also benefits the environment. Using solar energy means less fossil fuels must be used, which saves these limited natural resources while cutting carbon dioxide emissions. These systems have great benefits to our country as well. They help us cut back on plant produced power, which add a great amount of pollutants to our air in production. Using electric solar energy systems also limits our dependence on foreign oil to power our home and business needs. Electric solar energy systems create many new jobs for your neighbors as well, from manufacturing to installation.

Monday, November 25, 2013

Winter care for solar photovoltaic panels

Winter care for solar photovoltaic panels

Winter is coming, and that typically means snow for residents of New Jersey and Pennsylvania. It also means shorter days, which can decrease solar production because of less sunlight exposure. Don’t let snow build up and further hinder the production of your solar photovoltaic panels.

To remove snow from your solar photovoltaic panels easily, use a long, soft-edged tool to reach up onto the roof. Be sure the tool you use is not metal or another hard material which might hurt the panels For example, these sorts of tools would work perfectly and not cause damage to your panels:
  • Brooms with soft bristles
  • Squeegees
Snow isn't a danger to your solar panels. In fact, if you leave it alone, the sunlight we do get will melt it right off. If you find that the snow isn't moving off the panels on a sunny day, you can clear a small portion of the panel to allow sunlight to be absorbed to start generating power which will then cause the snow to loosen.

Removing a small portion of snow from the bottom of the solar photovoltaic panels will allow sunlight and gravity to do the rest of the work for you. Once the panels begin to warm up, the snow should slide right off. You may want to use that tool to clear any snow buildup from your gutters or equipment and walkways on the ground below.

If you have questions about winter care for your home’s solar photovoltaic panels, give us a call! The experts at Smith Sustainable Design are happy to advise you on the proper way to clear snow and keep your panels safe all winter long.

Monday, November 18, 2013

The benefits of choosing microinverters for your solar module

The benefits of choosing microinverters for your solar module
There are many components which make up your solar power installation. Choosing quality components which will help you maximize the power generated by your solar modules will be a great benefit to your home. Inverters are a crucial component which convert the direct current generated by the panels into alternating current which you can use for electrical power inside your home. There are a few types of inverters available, but a good choice for your residential solar modules is a microinverter.

Choosing microinverters can help you achieve a good return on your solar investment. They offer very high efficiency to help you generate the most power from your solar modules. They also offer an excellent warranty term of 10 years (or more depending on the manufacturer and model). Below are some of the benefits of choosing microinverters for use with your system:
  • Microinverters offer greater energy production over other types of inverters used in residential systems. They offer 5 to 25 percent more power generation than string inverters.
  • Microinverters are installed directly on each panel, rather than one per series of panels.
  • With microinverters, your solar modules will be less affected by factors that can hinder solar power generation, such as shade, temperature, and dirt.
  • Microinverters help protect against the hazards created by direct current electricity. They operate at lower voltages and reduce the risk of shock and fires.
  • Microinverters require less maintenance than other inverter types.
  • Microinverters are able to operate in more extreme temperature ranges than other inverter types.
  • A system with microinverters uses multiple inverters instead of just one. Therefore, if one is malfunctioning, it’s much cheaper to replace one microinverter versus a string inverter.
  • Using microinverters offers more flexibility in solar module system design, as they can be used with nearly all panels.

Microinverters truly are a good choice for your solar module system. If you have questions about microinverters or any of the components used in a solar module installation, feel free to call the experts at Smith Sustainable Design for answers.

Monday, November 11, 2013

Photovoltaic Solar Inverters

Photovoltaic Solar Inverters
A key element of a photovoltaic solar system is the inverter. The purpose of the inverter is to take the direct current generated by the panels and change it into usable alternating current for your home. There are different types of inverters available, so below, we’ll take a look at the options available.

Micro Inverters

A micro inverter may also be referred to as a module inverter, so don’t be confused if you hear this term instead. Individual micro inverters usually attach directly to photovoltaic solar modules, and they work to extract the power from each panel. This is a very reliable inverter option which can enhance design flexibility. Micro inverters are particularly relevant for residential systems and rooftops with complex, shaded situations.  Micro inverters are exceptionally reliable and typically come with 15 year warranty. The potential downside is their expense, and they can add cost to the overall photovoltaic solar installation.

String Inverters

The panels in grid-tied photovoltaic solar systems are wired together, creating a string of panels. This is done to increase voltage while keeping current low, simplifying wiring needs and the size of the wire needed. String inverters can be wired into several strings of panels. A string is made up of 7 to 14 panels. String inverters are widely used and usually include a warranty period of 10 years to 20 years.

Central Inverters

A central inverter is a kind of string inverter, but it is best suited for use with larger photovoltaic solar installations. In these applications, a central inverter is a better choice because they can simplify installation and offer higher efficiency versus string inverters in large application scenarios. Using string inverters in a large application can drive up installation costs, whereas using central inverters can keep costs in check. 

Monday, November 4, 2013

How do solar system panels attach to a roof?

How do solar system panels attach to a roof
When you think of installing solar system panels, you probably picture them mounted on your roof. So how will the new panels affect your roof? If installed properly, solar system panels can actually protect your roof.

The design of your home’s roof will play a significant role in determining how and where your solar system panels will be attached. First, the system designer must consider the sunlight exposure of your roof area, as it is crucial for panels to face either south, east, or west and be free from trees or structures that can block the sunlight. Also, your roof needs to have enough space to accommodate the panels. In a typical residential installation, 300 to 600 feet of surface space is needed.

Next, the type of roofing you have and its age are considered. If your home has an older roof, it is a good idea to go ahead and replace it before installing solar system panels, as the panels will outlast the roofing material and will need to be removed and replaced when it’s time for a new roof. Composite shingle roofing is ideal for solar installations, as they aren’t as fragile and can better withstand being drilled through to mount solar panels. Tile, concrete, and slate roofs can still accommodate a solar installation, but extra care and components will be needed to protect the integrity of the roofing.

There are three types of mounts that can be used to attach solar system panels to a home’s roof:
  • Direct mounts attach panels directly to the roof. We don’t recommend this mount because it doesn't facilitate airflow under the panels, which is necessary to cool them.
  • Integrated mounts attach panels to roof rafters. Roofing materials will have to be removed to do so. Because of this, this mount is best suited for new construction.
  • Stand-off mounts, also known as rack mounts, are most commonly used for residential systems. The racks are attached to roof supports, and panels attached to them. They promote good airflow and can be set at the proper angle for maximum sunlight exposure.

Friday, October 25, 2013

Understanding solar module financing options

Understanding solar module financing options

Solar financing options have made it possible for more homeowners to reap the benefits of having solar modules installed. By eliminating the high price tag for equipment and installation, solar financing is becoming a popular option for installing solar modules. There are a few different types of solar financing options available, so we’ve gone through the basics below to help you better understand them.


Power Purchase Agreements

A Power Purchase Agreement, commonly referred to as a PPA, allows the homeowner to negotiate the purchase price for the power only. This is done through a third party financing company who owns and installs the solar module. The benefit of a Power Purchase Agreement is the ability to purchase energy at a much lower rate than a consumer could get from a utility company. Most Power Purchase Agreements have credit score qualifications which must be met.

Pros:
  • In most scenarios, no money is needed upfront.
  • Savings on energy prices for the term of the contract.

Cons:
  • No ownership over solar module, so homeowner will not receive tax credits.
  • Transfer of contract may not be permitted if homeowner is selling home.

Solar Leases

In a lease, the solar module is also owned by a third party. This option is just like what you would find if you wanted to lease a car. You’ll stick to a payment schedule which is determined by the cost of the system. Your agreement may also include a buyout option before the end of the contract term, so you may choose to own your solar module system in the end.

Pros:
  • Usually no money down.
  • Savings on energy prices.
  • Potential for ownership of system.

Cons:
  • Contract is only transferable to a new homeowner if they qualify credit-wise.
  • You won’t receive tax credits.
Solar Loans

A solar loan is just what it sounds like. A homeowner can borrow money to pay for the installation and equipment. You’ll stick to a repayment schedule and have to qualify based on your credit score and other considerations.

Pros:
  • You’ll own the system.
  • You’ll receive tax credits.

Cons:
  • You may be required to make a down payment.

Property Assessed Clean Energy

Property Assessed Clean Energy (PACE) is a program ran by the government to help homeowners purchase solar modules. There are no credit score qualifiers and no money down is needed, but you must have 10 percent property equity. You’ll be billed when you receive your property tax invoice bi-annually.

Pros:
  • No money down is available.
  • Tax-deductible interest.
  • You can receive tax credits.
  • Financing usually will transfer to new owner upon sale of the home.

Cons:
  • Your property tax bill will be higher.

Friday, October 18, 2013

More homeowners taking advantage of solar installation thanks to leasing

More homeowners taking advantage of solar installation thanks to lea
Have you been seeing more rooftop solar installations in your neighborhood? Their high price tag once put them out of range for many homeowners. Now, thanks to lease options, more homeowners are able to undergo solar installation and reap the benefits of generating their own electric power

Lease options eliminate upfront costs for installation, labor, and equipment. With a solar lease, you can enjoy immediate energy savings without the hefty price tag. You won’t have to worry about waiting until after your payback period has been met to truly gain energy savings from your solar installation.

In locations across the United States, solar lease options are helping new demographics of homeowners take advantage of using solar energy use. While you may only have seen them in more affluent neighborhoods before, solar installations are springing up in neighborhoods everywhere. The difference is that some homeowners choose to own their systems outright while others choose to lease.

A study performed by the United States Department of Energy's National Renewable Energy Laboratory found a correlation between owning a solar panel system outright and a household’s income. Neighborhoods with households averaging income of $150,000.00 or more each year have been found more likely to own solar panel systems outright.

The solar lease options are more popular in neighborhoods with lower household incomes. While the upfront cost to own a solar panel system might be out of the question for many households, solar leasing makes the solar power option a possibility. Choosing to lease a solar installation has opened the doors for many new homeowners to add solar panels to their homes and reap the benefits.

Friday, October 11, 2013

Solar panels for homes can improve resale value

Solar panels for homes can improve resale value
Installing solar panels for homes is a significant investment. These systems cost several thousand dollars and take years to recover costs through energy savings because of their high price tag. If you don’t plan to stay in your home for the entirety of your payback period, should you forgo solar installation?

The answer is no! Studies of home sales indicate that installing solar panels for homes can significantly increase resale value. If you don’t recoup the cost of installation over the amount of time you remain in the home, you will likely be able to recover a great deal thanks to a higher selling price. This benefit can make installing solar panels for your home the right choice even if you plan to move in the future.

Studies show that solar panels for homes increase the value by 3 to 4 percent. The average home has a 5 kW solar energy system, which can increase equity by about $9,000.00. Before you decide to install a solar panel system in your home, think about how long you plan on staying and then energy savings you’ll achieve during that time period. If you won’t be meeting the payback period on energy savings alone, think about how the raised resale value will benefit you come time to sell.

Not only are the systems a valuable addition to the home, they also create value. Interested buyers can be attracted to homes with solar panels because they present a higher potential for energy savings. Wouldn’t you want to move into a new home that is going to help you save for all the years you are living there?

Solar panels for homes are also attractive for buyers looking to go green. Because they limit utility use, homes with solar panels reduce pollution and greenhouse gases. Greening your home through solar panel installation not only improves resale value, but can also attract another market of buyers to your property.

Friday, October 4, 2013

Choosing an electric solar energy contractor

Choosing an electric solar energy contractor
If you’re thinking about installing solar panels for your home or business, choosing the right contractor can improve your experience. Do you know the qualities you should look for in an electric solar energy contractor and the questions you should ask? There are some guidelines you should follow when selecting a contractor which can help ensure you have a positive experience and receive quality work.

Use this checklist when you interview contractors to help find the right fit.
About the company:
  • Are you licensed in New Jersey and Pennsylvania to install electric solar energy systems?
  • Are you insured for Liability and Worker’s Compensation?
  • Do you know what permits are needed to install solar panels in my area? Will you be responsible for obtaining permits or will that be my responsibility?
  • How many years of experience do you have in this field? What sort of training do your installers and technicians complete?
  • Does your company complete all work or will you use subcontractors to install electric solar energy systems?

About the installation:
  • How will my roof be protected during the installation?
  • What type of equipment will be used to mount the solar panels to my roof?
  • Will your design team help me to determine the best configuration of solar panels for my home?
  • How long will installation take from start to finish? Do you foresee any delays when ordering my equipment?

About the aftercare:
  • Does your company warranty the workmanship of my new installation?
  • Will you provide me with information about the product warranties for system components?
  • Does your company also provide service and maintenance for installing electric solar energy systems?
  • Are representatives of your company available to provide technical support by telephone or email?

Make the most of your investment by choosing the right electric solar energy contractor for your job. Smith Sustainable Design is a reputable electric solar energy contractor serving New Jersey and Pennsylvania home and business owners; call us today if you have any questions about how to choose the right contractor for your job.

Monday, September 23, 2013

Using a sun chart to place solar module panels

Using a sun chart to place solar module panels
The placement of solar module panels is arguably one of the most crucial factors in designing a good solar power system. Sun exposure will help determine if the solar module panels will have enough sunlight exposure to provide power for your needs. How do we determine if your site has optimal sunlight exposure? One tool we use is a sun chart.

We can create a sun chart to plot how much direct sunlight your site will be exposed to each day. The sun chart helps us first to determine if solar power is a good option for a client, and then helps us evaluate where to place solar module panels. The sun chart shows the movement of the sun across the sky, and shows us the approximate amount of sunlight the site will receive over the year.

We use two angles to plot the position of the sun. The azimuth is the angular distance of the sun from a fixed line. Here in New Jersey or Pennsylvania, we use a line that runs directly south, because solar module panels are placed south-facing in the northern hemisphere. For example, at noon, the sun is directly overhead in the sky, so the azimuth angle is zero.

The second angle used to chart the sun’s position is the elevation angle. It is created using a line which is parallel to the ground and a line running from the ground up to the sun. For instance, at noon, the angle is 90 degrees. At sunset when the sun is on the horizon, the angle is zero. These two angles are used to graph the sun’s movement through the sky over a period of a day.

The sun chart can be used to plot the sun’s movement in the sky throughout all four seasons. The changing seasons affect the length of sun exposure each day. Charting the exact sunlight exposure for each season will help us determine the correct amount of solar module panels you’ll need to power your home or business through even shorter days, like the summer and winter solstices.

A sun chart also accounts for impediments in the skyline. Things like trees, buildings, and towers can block the amount of sunlight your site receives. The sun chart allows us to determine if these impediments will prevent your site from receiving adequate sunlight exposure. We may find that your roof is not an optimal location for placement of solar module panels, but there is an area of your yard that receives perfect exposure where solar module panels can be mounted.

Monday, September 16, 2013

Why hire a contractor to install solar panels

Why hire a contractor to install solar panels
Doing it yourself is very tempting for many household projects. Doing it yourself can save you hassle and money. Many can be tackled just fine by a homeowner, but there are some that are better left to the pros. Installing solar panels is one task that you are better off hiring a contractor for.

Designing a solar power system and installing solar panels is a complex process, and many elements factor in to the final plan. Choosing an experienced contractor to handle your installation will help you avoid errors and unnecessary costs. Before the system is even installed, there are several considerations a contractor will help with. Permits and inspections may be necessary, depending on where you live. Your contractor will deal with the often time-consuming, confusing task of obtaining permits for your job.

Doing it yourself can have some pretty big disadvantages. If you are looking to tie into the utility grid, the power company may not permit connection if an approved contractor doesn’t install your solar panels. Plus, your homeowner’s insurance may not cover a self-installed system. Plus, if you install solar panels yourself, you won’t get the same warranty you would if using a contractor.

Choosing a contractor to install solar panels offers many distinct advantages. They have experience doing this work, whereas you most likely don’t. A good contractor knows how to design and install solar panels so they will work as expected- do you? If you don’t install solar panels properly yourself, individual warranties may not be honored and you’ll have a harder time working out the kinks in your system. Plus, using a contractor can help you get a better price on equipment because they have greater buying power. Some manufacturers won’t even sell to self-installers, so using a contractor is your best bet for getting great equipment at a great price.

There are many more advantages to using a contractor for installing solar panels. Installing solar panels is a big investment- protect it by making the right choice from the get-go. Looking for a trusted contractor to install solar panels in New Jersey or Pennsylvania? Contact Smith Sustainable Design today.

Monday, September 9, 2013

Going off the grid: solar installation needs

Going off the grid: solar installation needs

Going off the grid is different than a solar installation which will be tied to the grid. Off the grid, your solar installation must provide for all your power needs, you won’t have utility backup power to depend on. Off-grid solar installations require a few additional elements that aren’t needed for a grid-tied solar installation. Below is a list of the components you may find in an off-grid solar installation.


Battery Bank
The battery bank is an essential component of an off-grid solar installation. It stores extra electricity which isn’t immediately used, and will power a home or business through periods where sunlight is not optimal. The bank is usually composed of multiple individual batteries arranged as a series or in parallel, which are connected via cables.

Charge Controller
The solar installation’s charge controller is the component which feeds collected current into the batteries in the bank. The charge controller has a big impact on the economics of the solar installation. To make the most of your solar power, you’ll need a charge controller that can maximize the performance of the batteries in the bank.

Inverter
The inverter component switches DC voltage to the AC voltages which are needed to power most household devices and appliances. If only DC voltages are used in the facility, an inverter may not be necessary.

DC Loads Controller
A DC loads controller is needed in installations where DC and AC voltages are needed, and maintains the necessary voltages and currents for DC loads.

AC Generator
The AC generator isn’t a necessary component for your solar installation, but is useful for providing backup power during periods where solar collection isn’t optimal.

AC Loads Controller
Like the DC loads controller, the AC loads controller maintains appropriate voltages and currents for the AC appliances which are being operated.

Transfer Switch
The transfer switch is used to switch between power coming from the inverter and power created by the AC generator.

Monday, September 2, 2013

How large should my photovoltaic solar system be?

How large should my photovoltaic solar system be
Photovoltaic solar systems are not “one size fits all.” Each household and business has different requirements, which will help determine the size of the system needed. To get an idea about the size of the photovoltaic solar system you’ll need, the following are factors we figure and consider when designing a new photovoltaic solar system installation:

1.  Determine the total number of watt hours of energy will be needed each day. Put together a list of all the appliances and devices which are in use every day. Next, list how many hours that each device runs throughout a typical day.

2. Find your peak power output. Using your list of appliances and devices, determine the power draw of each device in watts- approximate power usage for household appliances and devices can be found online. To find your peak power output, determine which devices will be operating at the same time throughout the day. Add up the watts of all devices which will be used together to find the highest wattage that will be needed at any one time during the day.

3. Determine the duty cycle. If you’ll be installing a photovoltaic solar system for your primary residence, it’ll likely be in use 7 days a week. On the other hand, photovoltaic solar systems in use for offices and businesses may get a break in use over the weekend period when operations are shut down.

4. Estimate the number of good sunlight hours a location should receive. Sunlight hours can vary from day to day due to seasonal changes and weather conditions. If an installation location for a photovoltaic solar system will only be in use seasonally, such as a vacation residence or a business with seasonal operation, this factor will also be considered.

To learn more about sizing your photovoltaic solar system, contact Smith Sustainable Design. Our team installs photovoltaic solar systems for home and business owners in New Jersey and Pennsylvania.

Monday, August 26, 2013

Photovoltaic solar systems throughout the years

Photovoltaic solar systems throughout the years

Photovoltaic solar devices are used to generate electricity for homes and businesses. They absorb sunlight and an electronic process to release the electrons which are used to produce electricity for use. Photovoltaic solar technology has come a long way since its first days, and is now used to power many devices, from small electronics to large commercial operations!


The history of photovoltaic solar technology

Alexandre Edmund Becquerel first observed the photovoltaic effect in 1839, which began a trend of inquiry which continued through the beginning of the twentieth century. Bell Labs was the first company to introduce a photovoltaic solar device which could produce a good quantity of electricity- this device was released in 1954. Four years later, photovoltaic solar cells were being utilized on a small scale to power scientific and commercial endeavors.

In the 1970s, the energy crisis created quite an interest in photovoltaic solar technology. Unfortunately, the cost of equipment and electricity generation was too prohibitive for use in most homes and businesses. Developments in photovoltaic solar technology over the years have significantly reduced the cost of electricity generation, making it affordable for almost anyone to utilize. Installation prices have dropped 33% in just the last 2 years, and continue to fall still today.

Modern photovoltaic solar technology

The photovoltaic solar technology industry has grown dramatically, due to the decline in system pricing and the advances in manufacturing technology. Many nations around the globe are strengthening their energy policies and pushing for the shift from fossil fuels to photovoltaic solar and other alternative methods of energy generation, which has also helped the industry grow.

Modern photovoltaic solar products look different from their earlier counterparts. Today’s photovoltaic solar cells use crystalline silicone or a thin film as semiconductor material. Specialized multi-junction and tandem cells have been created for use in low-weight applications which require maximum efficiency- such as satellites and government needs.

Thursday, August 15, 2013

Installation considerations for solar system panels

Installation considerations for solar system panels
When choosing to install solar system panels at your residence or business, you need to look at the big picture. There are some issues which may affect the installation process, most of which must be dealt with before installation begins. Below are some of the items you’ll want to keep in mind before you install solar system panels.

Insurance

Installing solar system panels may require special considerations for your homeowner’s or property insurance. Many policies cover solar energy systems, but it is important to double check just to be sure. Also, roof installation of solar system panels may affect certain coverage for your roof. Check with your insurance agent about issues which could affect your coverage, such as roof penetrations which may be necessary for installing solar system panels.

Zoning

Depending on the area you live in, zoning laws may dictate where you can and cannot have solar system panels installed. To ensure compliance with local zoning laws, check with your city or county first. If you have a homeowners association, they may also require approval before installing solar system panels. Make sure to check with these organizations before planning your installation.

Permits

Cities and townships require permits for performing certain work; solar system panel installation also require a permit in your area. Permits must be obtained before installation begins. We can help you navigate the permitting process to ensure your installation is cleared by your city or township to prevent future issues.

Installing solar system panels can be a confusing process if you are not familiar with it. When you choose an experienced solar system panel installer like Smith Sustainable Design, we help you navigate the installation process to remove confusion and frustration. Our design and installation team can help you sort out necessary permits, ensure compliance with zoning laws, and inform you of the questions you’ll need to ask your insurance agent. 

Monday, August 12, 2013

Roof requirements for installing solar photovoltaic panels-Part 2

Roof requirements for installing solar photovoltaic panels-Part 2
As discussed in Part 1 of this blog series, space and orientation are two important factors we consider when determining if your roof is ideal for installing solar photovoltaic panels. The other critical factors we look at are the condition of the roof and the shading of the roof space.

Condition

The condition of your roof itself is an important consideration which should be evaluated before installing solar photovoltaic panels. If your roof is fairly new, you probably won’t need to worry about replacing it before the installation. On the other hand, if your roof is 15 years old or more, you may want to think about replacing it before your solar photovoltaic panel installation takes place. Most roofing materials only last 25 to 30 years, whereas your solar energy system won’t need replacement for about 20 or more years. With an older roof, those materials won’t outlive your system and will require replacement down the road, which means your solar energy system must be taken down and reinstalled after your roof replacement.

It is also crucial that your roof can withstand the weight of the solar photovoltaic panels. They don’t weigh as much as you may think- only 3 to 5 pounds per square foot- but they can add up because multiple panels will be used. We take precautions to determine the maximum load your roof system can bear to ensure your roof and building structure will not be damaged by the weight of the solar photovoltaic panels.

Shading

Your roof can be the perfect size, have the ideal exposure, and be in excellent condition, but it won’t matter at all if the solar photovoltaic panels will be shaded! Shading from other buildings, trees, chimneys, and other rooftop equipment can reduce the performance of the solar energy system. We use special software to estimate the amount of shading your roof receives each day of the year to make sure it isn’t enough to hinder your system performance.

When planning a solar photovoltaic panel installation, we don’t just come out and begin throwing panels up on your roof. We take the time and do the leg work to ensure your roof is the right location for panel installation. Smith Sustainable Design wants to maximize the performance of your solar photovoltaic panels, and these roof check areas are the first step in doing so.

Monday, August 5, 2013

Roof requirements for installing solar photovoltaic panels - Part 1

Roof requirements for installing solar photovoltaic panels - Part 1
When we have a customer interested in installing solar photovoltaic panels for residential or commercial electricity generation, we first look to the roof for suitable installation conditions. The roof of a commercial building or house is prime real estate which is perfect for these panels to sit and collect the sun’s energy for electricity generation. First we must make sure your roof has the ideal characteristics for the installation of solar photovoltaic panels to ensure you’ll receive the benefits you expect of your solar energy system.

Space

One of the most obvious characteristics we look for is space. A roof must have the appropriate amount of space necessary to install the number of solar photovoltaic panels needed for your system. If the roof of the structure isn’t large enough to house the panels, they can be installed elsewhere, such as on a pole or mounted in the surrounding yard.

Orientation

It’s important that the roof’s orientation be optimal for sunlight exposure to make sure your system collects the appropriate amount of energy. In Pennsylvania and New Jersey, the sun moves along a southern path. Because of this factor, the ideal roof for installation of solar photovoltaic panels has a good southern exposure. If your roof doesn’t have a southern exposure, southeast and southwest exposures will work but offer about a 5% decrease in system performance versus a southern exposure.

The slope of the roof is an important factor when determining the ideal installation scenario for solar photovoltaic panels. To maximize system performance, we calculate the necessary tilt needed for your solar photovoltaic panels to capture the proper amount of sunlight. If more tilt is necessary for your roof, angled mounting brackets may be used for installation.

Space and orientation are just two of the roof factors we look at when planning to install solar photovoltaic panels at a residence or commercial location. Check out Part 2 of this blog series to learn about the additional factors: roof condition and shading.

Saturday, July 27, 2013

Solar installation for schools

Solar installation for schools
Many institutional building designers are incorporating the benefits of solar installation into the design of these facilities. Solar installations can help reduce the cost of power used significantly, generating more savings for everyone affected. Because of the amount of electricity needed to power a school building, going solar has tremendous benefits for these institutions.

In nearly every state, there are schools which have gone solar and are now generating electricity for their own use. Solar installations and equipment prices have dropped over the last few years, making them more affordable for school systems to utilize. Solar installations provide numerous benefits for schools which use them.

These systems reduce the amount of utility power required to light, heat, and cool a school, as well as power used for other needs. This ability to generate a large portion of the necessary power reduces a school’s expenses and greatly lowers utility bills. Generating their own power through solar installation also helps schools reduce their overall carbon footprint. By utilizing solar power in their facility, a school can also gain the opportunity to teach students first-hand about the power of solar energy and its benefits.

Schools are not only great candidates for solar photovoltaic systems, but also solar thermal systems. A solar thermal system can provide energy savings for the school’s water and space heating needs. Schools may choose to start with small scale solar systems which generate a smaller amount of energy, or a larger system.

Regardless of the type of solar installation, safety and quality are of the utmost importance for schools. A qualified contractor can perform a site survey in order to assess the structure of buildings and the suitability of the location for solar installation. Smith Sustainable Design performs solar installations across New Jersey and Pennsylvania for commercial, institutional, and residential buildings.

Saturday, July 20, 2013

Buy electric solar energy in bulk, too!

Buy electric solar energy in bulk, too!
For many homeowners, the price tag associated with the equipment and installation of electric solar energy systems can be overwhelming. Options such as power purchase agreements and solar leases have become a popular way to avoid daunting upfront expenses while still harnessing solar energy at home. But, there is another option available which allows groups of homeowners to gain the advantage of buying electric solar energy in bulk, lessening the sticker shock of installation. Solar group purchasing is a great way for homeowners to save on electric solar energy by purchasing in bulk quantities.

Just like the bulk savings you can achieve by purchasing goods from a warehouse store that sells in large quantities, solar group purchasing offers the same benefits for the purchase of electric solar energy. By joining with a group of neighbors or an organization, the group purchases their electric solar energy systems together. While you still own your own system that generates power for just your home, multiple systems are effectively purchased together.

Combining forces and purchasing electric solar energy systems in bulk can save you money. When bulk system purchases are made in these scenarios, Smith Sustainable Design can pass on significant savings to group participants. You’ll save more on the equipment and installation of your electric solar energy system in this situation, compared to purchasing individually.

Another advantage of solar group purchasing is convenience. As with any major home improvement, there are many steps to deal with which can be very time consuming. When partnering with other customers, you can save time, energy, and hassles in the bidding process, selecting a reliable contractor, obtaining permits, and coordinating with the utility company. Solar group purchasing can make the process easier for all involved.

Sunday, July 14, 2013

Solar photovoltaic panel installation for carports

Solar photovoltaic panel installation for carports
Your roof isn’t the only location available for solar photovoltaic panel installation. Many homeowners and businesses are choosing to utilize carports and awnings as a prime location for panel installation. Not only do these parking structures keep vehicles cooler on hot days, but they provide a way to utilize open spaces for solar energy collection.

Solar photovoltaic panel installation cannot always be performed on a roof space for a variety of reasons. For instance, many commercial buildings simply do not have the roof space because other vital equipment is installed there, such as HVAC systems. Using a carport for solar photovoltaic panel installation is a flexible solution. This method can be used for homes and businesses alike.

Panels for a single-family home can be situated above a 1-car structure, while businesses can choose to install multiple carport structures throughout their parking area to capture solar energy for business operations. With solar photovoltaic panels installed via carport, energy captured and converted by the panels can easily be used to charge electric vehicles while parked! At home, this option helps cut back on utility expenses for charging. Businesses can use solar carports and charging stations to provide added convenience for customers and employees.

In addition to carports, solar photovoltaic panels can be installed over a space to create an awning or solar canopy for a patio. Not only can solar panels be used to offset electricity use, but the panels themselves can be used to create comfort and convenience in new ways outdoors.

Don’t be discouraged if you think your roof isn’t ideal for solar photovoltaic panel installation. There are many other options that are functional and convenience, which may also enhance your outdoor spaces. Smith Sustainable Design installs solar carports and canopies in New Jersey and Pennsylvania- contact us today to learn more. 

Sunday, July 7, 2013

Roofing & Solar System Panels

Roofing & Solar System Panels

There are many styles of residential and commercial roofing, and a variety of building materials which can be used in the process. In a majority of applications, solar system panels are installed in the roof space of a home or business. There are many qualities a roof has that can affect installation, and certain precautions will be taken by solar system panel installers to protect the roof itself as well as the panels.


Older roofs

When installing solar system panels on an older roof, we encourage you to consider the life of your current roof beforehand. Take into account how old your roof is, how many more years you expect to get out of it, and its current condition. If your home is due for a new roof in under five years, it may be more practical to go ahead and install a new roof before solar system panel installation. This will avoid the need to have the panels removed and reinstalled when your new roof is installed, and the panels will also help protect your new roof, possibly making it last longer than expected.

Roof pitch

The pitch, or angle, of a roof plays a part in determining how solar system panels are installed. Very steep roofs can add to installation time and may require special mounting equipment to secure the panels. Installing solar system panels on a flat roof will likely need ballast rack mounted to hold the equipment.

Roofing materials

Some roofing materials are more sensitive than others when it comes to solar system panel installation. Tile and shake shingles are fragile, and extra care must be taken when installing the solar system panels to avoid damaging the roof. Asphalt shingles are durable, and solar system panels can usually be installed easily with mounts that attach to the roof via the rafters. Regardless of your roofing material, any gaps around mounting equipment must be properly sealed to avoid weather damage to your roof.


When undergoing a solar system panel installation, it’s best to trust a company with experience and expertise in order to protect your roof and your home. Smith Sustainable Design is a highly qualified solar system panel installer who can protect the integrity of your roofing system throughout the life of your solar collection system.

Monday, June 24, 2013

Lower electricity bills when you install solar panels

Lower electricity bills when you install solar panels
You probably know that solar power is a low-cost way to power your home or business, but do you know why? When you install solar panels, you can drastically cut your monthly electricity bills. Here are a few of the ways that solar panels help you achieve lower electricity costs.

1. Reduced utility power use

When you install solar panels for your home or business, we design your system with a number of factors in mind, including your home or facility’s typical electricity usage. We use your usage to determine the optimal amount of power your solar panels should generate. While you will likely still need to use some utility power, your demand will be much less, which may qualify you for lower rates. Lower energy rates and less utility power used will cut your electricity bills significantly.

2. Sell your excess power

If your solar power system generates more electricity than you need, the excess electricity flows back to the utility grid. Depending on the agreement you will have with your local utility provider, you may be able to sell the excess electricity your solar panels generate. This results in credits for future power use or even payments from your utility company.

3. Avoid rising energy prices

Your local utility company likely uses fossil fuels to produce the electricity you use in your home or business. When fossil fuels are used, electricity prices are affected by the fluctuating prices of these fuels. When you install solar panels, you generate most of your home or facility’s electricity need, so you don’t experience these price fluctuations as much as others. If you have a solar lease or power purchase agreement, you can lock in low rates for long periods, avoiding rising utility prices altogether.


Installing solar panels isn’t just good for the environment; it’s also a smart move for your wallet. Smith Sustainable Design installs solar panels in New Jersey and Pennsylvania for homes and businesses who are looking for a way to lower electricity bills. Contact us today to learn more about the benefits you’ll get when you install solar panels.

Monday, June 17, 2013

Electric solar energy systems benefit the economy

Electric solar energy systems benefit the economy
Electric solar energy systems do more than just produce affordable, efficient power for your home or business. The solar energy industry has a major impact on our economy. Let’s take a look at some of the many ways electric solar energy systems help everyone.

Obviously, an electric solar energy system saves you money. With a system installed at your home, you’ll save hundreds of dollars every year on energy expenses. With more money in your pocket, you will be able to spend less on utility power and more on other goods and services, boosting the economy. When you take advantage of solar power to provide electricity for your home, you can drastically reduce or eliminate your electric utility bills each month.

With solar power gaining popularity, more new jobs are created in the industry. Electric solar energy installer job opportunities are growing. Also, more workers are needed to manufacture system components, skilled employees are needed to design solar energy systems, and electric solar energy contractors need to add new employees to keep up with demand and keep customers satisfied. The growing solar energy industry creates new jobs for your neighbors, and others across the world.

One last important way electric solar energy helps the economy is by reducing energy dependence. The United States is largely dependent on oil sources abroad, but the sun is not owned by any one country. By harnessing solar power for our energy needs, we can reduce our dependence on foreign oil and lower energy prices by eliminating taxes and tariffs. Once your electric solar energy system is installed, you don’t have to worry about fluctuating energy prices. Solar energy is a smart move towards energy independence.

Gain the personal advantages and boost the economy when you choose an electric solar energy system to provide for your home’s power needs. Smith Sustainable Design has a skilled team of electric solar energy installers to design and install your new system- call us today to learn more.

Monday, June 10, 2013

Solar panels for homes can help you save, and make money!

Solar panels for homes can help you save, and make money
You may have heard a lot of different information about the efficiency of solar panels, and how solar panels for homes can help you use less energy. Well, lower energy use has benefits to the environment along with your wallet. Installing solar panels for your home can help you save money, and even make money. Here are just a few ways your solar energy system will help lower your bills.

When installing solar panels for homes, the federal government currently provides tax credits to offset your installation costs. These credits effectively lower equipment and labor costs, so your system pays for itself sooner, with a shorter payback period.

Obviously, your solar panels will produce a portion, if not all, of the electricity you need each month. For every unit your system produces, it is one less that you have to purchase from a utility provider. With solar panels for homes producing a significant portion of the power consumed by a home each month, your utility bills will be much lower, if not zero.

Depending on the arrangement with your utility provider, you may be able to sell back the excess electricity produced by your home’s solar panels. This can happen when your system produces more energy than you need each month. Selling back your excess electricity can earn you a credit on your next utility bill.

Residential and commercial solar installations in New Jersey and Pennsylvania produce Solar Renewable Energy Certificates (SRECs). Renewable Energy Credits (RECs) are energy commodities that represent proof that 1 megawatt-hour (MWh) or 1,000 kilowatt-hours (kWh) of electricity was generated from an eligible renewable energy resource (renewable electricity). In conjunction with state and federal incentives, solar system owners can recover their investment in solar by selling their SRECs through spot market sales or long-term sales.

So you see, solar panels for your home can really help you save money, and in some cases, make money. Use your solar panels to your advantage to lower your utility bills, and provide cheaper, more efficient power for your home. Contact Smith Sustainable Design to learn more about solar panels for homes and all the advantages they provide.

ShareThis